CHR01-2025 Series Humidity Sensitive Resistor
The CHR01-2025 series is an impedance-type polymer humidity sensor (humidity sensitive resistor) that utilizes a functional polymer film coated on a ceramic substrate with conductive electrodes. The impedance changes logarithmically with relative humidity, with the conduction mechanism influenced by the mobility of conductive ions within the polymer film due to the presence of water molecules. It is suitable for applications requiring humidity measurement, including dehumidifiers, humidifiers, transmitters, modules, electronic thermohygrometers, refrigeration, drying, and meteorology. This industrial-grade sensor offers high precision, reliability, excellent waterproof and water resistance, strong adaptability to high and low humidity, stability, low drift, and good consistency.
Product Attributes
- Brand: CYBERSEN
- Manufacturer: Guangzhou Cybersen Technology Co., Ltd.
- Origin: China
- Material (Housing): ABS
- Material (Substrate): AL2O3
- Certifications: GB/T15768-95, SJ/T10431-93, SJ20760-99
Technical Specifications
| Model | Nominal Resistance (25, 60%RH) | Size | Pin Spacing | Working Voltage | Detection Range | Detection Accuracy | Operating Temperature Range | Response Time | Humidity Drift (/year) | Humidity Hysteresis |
| CHR01-2025 | 23K | W (Semi-circular) / S (Square) | W: 5.08mm / S: 2.54mm | 1V AC (50Hz2KHz) | 0%99%RH | 2%RH | 0+85 | 12s (20%90%) | 2%RH | 1.5%RH |
Characteristic Impedance Data (25)
| Model | 20%RH | 30%RH | 40%RH | 50%RH | 60%RH | 70%RH | 80%RH | 90%RH |
| CHR01-2025 | 3000K | 920K | 240K | 68K | 23K | 9.5K | 4.1K | 1.8K |
Humidity Impedance Data Table (Example: CHR01-2025)
| RH | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 |
| 20% | 4100 | 3000 | 2300 | 1700 | 1400 | 1000 | 800 | ||
| 25% | 2500 | 2100 | 1600 | 1300 | 940 | 730 | 540 | 430 | |
| 30% | 1900 | 1500 | 1200 | 920 | 690 | 490 | 350 | 290 | 240 |
| 35% | 1100 | 870 | 650 | 470 | 330 | 250 | 210 | 160 | 130 |
| 40% | 630 | 430 | 320 | 240 | 180 | 145 | 120 | 95 | 76 |
| 45% | 310 | 220 | 170 | 125 | 95 | 75 | 65 | 56 | 44 |
| 50% | 160 | 115 | 90 | 68 | 55 | 42 | 36 | 31 | 27 |
| 55% | 80 | 65 | 53 | 37 | 30 | 26 | 22 | 19 | 17 |
| 60% | 50 | 36 | 28 | 23 | 18 | 15.5 | 13 | 11.6 | 10.5 |
| 65% | 29 | 22 | 17 | 14 | 12 | 10 | 8.8 | 7.4 | 6.7 |
| 70% | 16 | 13 | 11 | 9.4 | 8.2 | 7 | 6.2 | 5.1 | 4.3 |
| 75% | 10 | 9.1 | 7.5 | 6.1 | 5.5 | 4.7 | 4.1 | 3.6 | 3.1 |
| 80% | 7 | 5.9 | 5 | 4.1 | 3.7 | 3.3 | 2.6 | 2.3 | 2 |
| 85% | 4.6 | 3.8 | 3.3 | 2.8 | 2.4 | 2.1 | 1.9 | 1.7 | 1.4 |
| 90% | 3.2 | 2.5 | 2.1 | 1.8 | 1.7 | 1.5 | 1.3 | 1.1 | 0.9 |
| 95% | 2.1 | 1.9 | 1.6 | 1.4 | 1.2 | 1 | 0.8 | 0.7 | 0.55 |
Note: All impedance values are in K. Testing conditions: Constant temperature and humidity chamber, RCL bridge at 1KHz, 1V.
2206171545_CYBERSEN-CHR01-2025-W_C393716.pdf
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